Guo Yanliang, a champion debater who honed his argumentation skills in international contests and on online variety shows, has left one of Europe’s top quantum laboratories to set up his own research group in Beijing. Guo Yanliang, a champion debater who honed his argumentation skills in international contests and on online variety shows, has left Key points and original sources are listed below.

• Guo Yanliang, a champion debater who honed his argumentation skills in international contests and on online variety shows, has left one of Europe’s top quantum laboratories to set up his own research group in Beijing. Guo, 33, says he sees scientific research...S1

• Guo Yanliang, a champion debater who honed his argumentation skills in international contests and on online variety shows, has leftS2